Ethnocentrism: Belief in the superiority of one's nation or ethnic group, often accompanied by feelings of dislike for other groups. The evaluation of other cultures according to preconceptions originating in the standards and customs of one's own culture.
Sentence
Trying to appear less ethnocentric, Bob removed his Make America Great Again hat when he entered the Hindu temple. It was too late, for he had already been spotted on the closed-circuit video feed.